ʾʹõԴ
LED         --   PB1


ʾḶ́
1ϵʱӡLPTIMLEDƣ
2LEDĬΪر״̬
3ȴ3s
4FlashʱΪ0usLPTIM¼ѣ֮DeepstopģʽWFE; 
     ȴLPTIMDeepstop־
     SRAMУɷɢļʵ֣MDKPMU_Flash_NoWait_Wakeup.sctļأ
5LEDƣָϵͳʱãFlashУ
